REM sleep is a stage of sleep when your heart rate increases, your blood pressure elevates, and your brain processes emotions ...
Live Science on MSN
REM sleep may reshape what we remember
Researchers trace how different sleep stages may fine-tune what we remember, trading specifics for more general knowledge.
The Two Pillars of Recovery If you’ve ever wondered whether deep sleep or REM sleep is “more important,” think of it like comparing cardio to weight training.
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